Removing VideoCodecDerived and moving methods inside VideoCodec.

VideoCodecDerived added to handle changes to talk (fakewebrtcvideoengine.h).

R=mflodman@webrtc.org
TBR=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/10569004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5784 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed